Question Discussion & Solution

S.I. Unit of Pressure is Pascal,

Similarly,

S.I. Unit of Current is Ampere.

The correct answer is First.

• As of June 2015, First place does Rajasthan have in solar power generation between Indian states.

• Solar power capacity of Rajasthan
  • ​According to data released by the Union ministry of new and renewable energy on June 4, 2015, Rajasthan has grabbed the number one position in the country with an installed capacity of 1,167 megawatts against Gujarat's 1,000 MW.

Additional Information

Solar power capacity of India: ​Top 5 states

% → modulus operator

printf() function

The printf() function is used for output. It prints the given statement to the console.

Analysis:-

m = m%(m*3)

Calculation:

m = 23 mod (23 × 3)

m = 23 mod 69  

m = 23 

Note:

Assignment operator associativity is right to left.

Printf statement will print the value of m as 23. (Output would be 23).

Confusion PointsHere 23 mod 69 means. 23 is divided by 69. That's why 23 is the answer. For better clarity, you can run the above program and check.

Additional Information 

The correct answer is Mirage.

• To a distant observer, the light appears to be coming from somewhere below the ground.
• The observer naturally assumes that light is being reflected from the ground, say, by a pool of water near the tall object.
• Such inverted images of distant tall objects cause an optical illusion to the observer.
• This phenomenon is called a mirage.
•  The optical illusion which occurs mainly in the desert during hot summer is based on the principle of TIR i.e total internal reflection.
• This type of mirage is especially common in hot deserts.

Additional Information

• Total Internal Reflection (TIR): When a ray of light goes from denser to the rarer medium it bends away from the normal and as the angle of incidence in denser medium increases, the angle of refraction in the rarer medium also increases and at a certain angle, angle of refraction becomes 90°, this angle of incidence is called critical angle (C).
• When the Angle of incidence exceeds the critical angle then the light ray comes back into the same medium after reflection from the interface. This phenomenon is called Total internal reflection (TIR).
• Conditions for TIR: 
  1. The ray must travel from denser medium to rarer medium.
  2. The angle of incidence 'i' must be greater than the critical angle C.

Words that can be formed using A, E, L and T are

LATE, TALE, LEAT, TEAL, TAEL, TELA